package io;

import java.io.*;

public class CopyDemo {
    public static void main(String[] args) throws IOException {
        FileInputStream fis=new FileInputStream("cs.jpg");
        FileOutputStream fos=new FileOutputStream("cf_cp.jpg");
        long start =System.currentTimeMillis();
        int d ;
        while ((d=fis.read())!=-1){
            fos.write(d);
        }
        long end = System.currentTimeMillis();
        System.out.println("复制完毕！耗时:"+(end-start)+"ms");
        fis.close();
        fos.close();

    }
}
